The SNCF Class BB 47000 "Prima" electric locomotive is a 6000 kW locomotive, built by Alstom. This locomotive is the quadruple-voltage version of the Class BB 27000. So far, only one locomotive, numbered 47001, has been built and was tested by Fret SNCF with a view for further orders. In 2006 it became clear that SNCF wouldn't order this version anymore and the locomotive has passed on to Alstom as a permanent test bed locomotive for testing different Alstom technologies.